Cartridge for the preparation of oxygen.



G. P. JAUBERT.

CARTRIDGE FOR THE PREPARATION OF OXYGEN. APPLICATION FILED NOV. 10, 1909 1,025,191., Patented May 7,1912.

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CARTRIDGE FOR THE PREPARATION OF OXYGEN.

Specification of Letters Patent.

Patented May 7,1912.

Application filed November 10, 1909. Serial No. 527,178.

To all whom it may concern:

Be it known that I, GEORGE FRANgoIs JAUBERT, a citizen ofthe Swiss Republic,

' residing 155 Boulevard Malesherbes, Paris,

France, have invented new and useful Im provements in Cartridges for the Preparation of Oxygen, of which the following is a specification.

This invention relates to the preparation of oxygen, or gaseous mixtures rich in oxygen, by'the auto-combustion of pulverulent mixtures composed of chlorates, erchlorates, nitrates, etc., mixed with su stances capable of maintaining combustion, such as carbon, It has been recognized that it is impossible to burn large quantities of such mixturesina closed vessel because their combustion is defective and produces an in? crease of swelling of the mass; and-ithas been found that the combustion of such mixtures could be successfully brought about by confining relatively small masses within containers which permit the lateral escape of the resulting gases through the mass, and to this end the combustion of these substances has been carriedout inside an incombustible envelop capable of allowing the gases produced to escape laterally, which envelops have been composed of asbestos fabric, for example. Such asbestos envelops are not suitable for transportation of the pulverulent mixtures and are not easily handled at the moment of their employment. Perforated metallic cartridges containing the pulverulentmixture and suitable for introduction into a generating apparatus have also been employed, but such cartridges have heretofore always been lined with an asbestos fabric to prevent the burning of the metal by the combustion of the mass, which takes place 'in the presence of oxygen under pressure.

I have discovered that the combustion of the materials for the liberation of oxygen may be brought about directly inside of an unperforated metal envelop, of; iron, for example, without the interposition of an insulating body, so that the cartridge or envelop may be utilized for package and transportation of the mixture and also may be utilized as the receptacle for the mixture during combustion, a manipulation of the chemical substances prior to their employment being thus obviated and the manufac-- ture of the cartridge rendered more economical.

An embodiment of the invention is represented in the drawingwhich shows a cartridge constituted by a box a of tinned sheet iron, for example, formed by a cylindrical body lapped, but not soldered along a line or seam'b, and which may conveniently have at itslower end a flange 0 upon which rests a perforated plate (2. The cartridge is completed and closed, to serve as a receptacle for transport, by a removable bottom cover e and a top cover 1, which fit onto the ends of the cylindrical body. In packing the cartridge the perforated plate d and the removable bottom cover 6 are arranged in place and the receptacle is filled with the pulverulentmixture. When the cartridge is. full the cover f is put on and. the car- I tridge isthen ready to be shipped.

In order to utilize this cartrid e in the combustion of the mixture to pro uce oxygen its two covers are removed and it is introduced into an appropriate generating apparatus and the charge is kindled in the ordinary way. The combustion is propagated throughout the entire mass, in the same manner as in the old asbestos containers, the oxygen escaping through the. mass to the walls of the cartridge and through the open ends thereof, and in accordance with my discovery the outer walls of the cartridge will be protected and preventedboth for the shipment and for the combustion of the mixture, whereby manipulation of the chemical substane at the moment of the preparation of the oxygen is avoided;

While I prefer to employ the perforated plate d at the lower end of the cartridge, this is not essential to my invention and may be omitted.

What I claim is i 1. A cartridge for the preparation of oxygen or gaseous mixtures rich in oxygen comprising an envelop made of a combustible.

metal and'filled with a pulverulent mixture containing a combustible substance and a substance substantially as described which when heated will give off oxygen to unite with the combustible substance and an excess of free oxygen, said pulverulent mixture being in direct contact with the metallic envelop, and said envelop having removable end covers, whereby the envelop serves for the transportation of the mixture and also as a container during combustion.

2. A cartridge for the preparation of oxygen or gaseous mixtures rich in oxygen comprising an envelop made of'a combustible metal and filled with a pulverulent mixture containing combustible substance and a substance substantially as described which when heated will give off oxygen to unite with the combustible substance and an excess of: free oxygen, said pulverulent mixture being in direct contact with the metallic envelop, said envelop having removable end covers and a perforated plate in its lower end, whereby the envelop serves for the transportation of the mixture and also as a container during combustion.

3. A cartridge for the preparation ofoxygen or gaseous mixtures rich in oxygen comprising an envelop made of a combustible metal and filled with a pulverulent'mixture containing combustible substance and a' substance substantially as described which when heated will give off oxygen to unite with the combustible substance and an excess of free oxygen, s'aid pulverulent mixture being in direct contact with the metallic envelop.

In witness whereof I have hereunto placed my hand, at Paris, France, this 28th day of October 1909.

GEORGE FRANQOIS JAUBERT.

In the presence of two witnesses:

H. C. Coxn, HENRY SGHWAB. 

